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RIOT/cpu/saml1x/periph/Kconfig.spi

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cpu/sam0_common: SPI: don't perform DMA transfer for small buffers Setting up a DMA transfer can take longer than sending out a buffer byte by byte if the buffer is small. DMA only shows advantages for large buffers, using it for every transfer will cause a net slowdown. Since we did not come up with a good way to determine the treshold based on the SPI frequency, just use a fixed buffer for now so that DMA can be used without slowing things down overall.
2021-10-01 12:41:03 +02:00
source "$(RIOTCPU)/sam0_common/periph/Kconfig.spi"
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